Apple Seeds Fourth Beta of macOS High Sierra 10.13.6 to Developers and Public Beta Testers - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Seeds Fourth Beta of macOS High Sierra 10.13.6 to Developers and Public Beta Testers

by

Apple today seeded the fourth beta of an upcoming macOS High Sierra 10.13.6 update to developers and public beta testers for testing purposes, one week after seeding the third 10.13.6 beta.

The new macOS High Sierra 10.13.6 beta can be downloaded through the Software Update mechanism in the Mac App Store with the proper profile installed.

macos hs beta
We don't yet know what improvements the sixth update to macOS High Sierra will bring, but it likely focuses on bug fixes and performance improvements for issues that were not able to be addressed in macOS High Sierra 10.13.5.

No feature changes were discovered in the first three macOS High Sierra 10.13.6 betas, but we'll update this post if new features or notable bug fixes are discovered in the fourth beta.

Work on macOS High Sierra is wrapping up, with Apple now shifting focus to the next-generation version of macOS, macOS 10.14, which was unveiled at the Worldwide Developers Conference in early June.

Related Forum: macOS High Sierra

Top Rated Comments

pat500000 Avatar
101 months ago
How’s hs so far? Stable? I’m on sierra.
Score: 3 Votes (Like | Disagree)
Morgenland Avatar
101 months ago
is blurry pdf issue still exist ?
Depends on the degree of sobriety
Score: 2 Votes (Like | Disagree)
ceej269 Avatar
101 months ago
How’s hs so far? Stable? I’m on sierra.
Immediately after installation and restart there was no wifi. It was turned off and nothing happened when attempting to turn on. So I again rebooted. Seems okay now but has only been updated for 5 mins so time will tell.
Score: 1 Votes (Like | Disagree)
Kognito Avatar
101 months ago
How’s hs so far? Stable? I’m on sierra.
Did a fresh install a week or so back from Sierra after holding out due to the bugs and the compatability issues which inevitably plague various dev tools.

Can happily say I’m pleased to have made the switch as High Sierra seems just as fast, if not slightly faster and a lot of the niggles I had with Sierra are gone. No issues with APFS although if I were you I’d go for the fresh install and transfer content rather than an in-place filesystem change.
Score: 1 Votes (Like | Disagree)
101 months ago
2.47 GB, wasn't the last one quite a bit smaller?
Yes. This is because it downloaded the combo this time. Did for me too. There is a delta for beta 4. Not sure why the combo downloaded this time. Combos usually only download if you have skipped some point releases, eg going from 10.13.1 to 10.13.6. Whereas if you go from 10.13.5 to 10.13.6 or an earlier beta of 10.13.6 to a later one then we would expect the delta to download.

As well as overall size, you can tell which one you are getting by looking in the folder /Library/Updates as it downloads. If you see folder 091-90757 you are getting the combo. If you see 091-90756 it is the delta. Don't bother looking if you've already installed it - these folders delete themselves after installation. You have to look AS IT DOWNLOADS BEFORE IT INSTALLS. For public releases it should also say "Combined Update" in the mac app store if it is a combo - but it didn't this time for this beta.

Here are all the packages for beta 4 with their respective file sizes:



Attachment Image
Score: 1 Votes (Like | Disagree)
Chase R Avatar
101 months ago
The Mac is in a sad, sad state.
Score: 1 Votes (Like | Disagree)

Popular Stories

iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching Later This Year With These 12 New Features

Wednesday March 18, 2026 7:39 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another six months or so, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component...
imac video apple feature

Apple Released Yet Another New Product Today

Friday March 20, 2026 2:39 pm PDT by
Apple has unveiled a whopping nine new products so far this March, including an iPhone 17e, iPad Air models with the M4 chip, MacBook Air models with the M5 chip, MacBook Pro models with M5 Pro and M5 Max chips, the all-new MacBook Neo, an updated Studio Display, a higher-end Studio Display XDR, AirPods Max 2, and now the Nike Powerbeats Pro 2. iPhone 17e features the same overall design as...
ios 26 4 yellow

Here Are Apple's Release Notes for iOS 26.4

Wednesday March 18, 2026 11:56 am PDT by
Apple provided developers and public beta testers with the release candidate versions of iOS 26.4 and iPadOS 26.4, which means we're going to see a public launch as soon as next week. The RC versions of the software include Apple's official release notes, giving us final details on what's included in the update. Apple Music - Playlist Playground (beta) generates a playlist from your...
Related Apple News: Opinion | Mac | Ipad | Iphone | News